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<div class="title">Reader.cpp</div>  </div>
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<a href="_reader_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*  Project STARS</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">    John DiCamillo Software Consulting</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">    Copyright (C) 1997-2000. All Rights Reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">    SUBSYSTEM:    obelisk</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">    FILE:         reader.cpp</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">    AUTHOR:       John DiCamillo</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">    OVERVIEW</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">    ========</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">    Implementation of the Reader class</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_mem_debug_8h.html">MemDebug.h</a>&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_reader_8h.html">reader.h</a>&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;fstream&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;ctype.h&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="keywordtype">void</span>              <a class="code" href="_list_8inl.html#a76779b0ba1af4da2cfb8cf309b39372b">Print</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* fmt, ...);</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment">// +-------------------------------------------------------------------+</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<a class="code" href="class_text.html">Text</a></div>
<div class="line"><a name="l00027"></a><span class="lineno"><a class="code" href="class_console_reader.html#a135e71e95e40476ef30f1fd4e00a4c53">   27</a></span>&#160;<a class="code" href="class_console_reader.html#a135e71e95e40476ef30f1fd4e00a4c53">ConsoleReader::more</a>()</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;{</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;   <span class="comment">// loop until the user types something</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;   <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;      <a class="code" href="class_console_reader.html#aad21ebb2a6e00a4f4ed9a2805f86e5d5">printPrimaryPrompt</a>();</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;      <a class="code" href="class_console_reader.html#afbaebf191d14852f2f8e08ec366d90a2">fillInputBuffer</a>();</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;   } <span class="keywordflow">while</span> (! *p);</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;   <span class="keywordflow">return</span> <a class="code" href="class_text.html">Text</a>(p);</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;}</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="code" href="class_console_reader.html#aad21ebb2a6e00a4f4ed9a2805f86e5d5">   39</a></span>&#160;<a class="code" href="class_console_reader.html#aad21ebb2a6e00a4f4ed9a2805f86e5d5">ConsoleReader::printPrimaryPrompt</a>()</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;{</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;   printf(<span class="stringliteral">&quot;- &quot;</span>);</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;}</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="code" href="class_console_reader.html#afbaebf191d14852f2f8e08ec366d90a2">   45</a></span>&#160;<a class="code" href="class_console_reader.html#afbaebf191d14852f2f8e08ec366d90a2">ConsoleReader::fillInputBuffer</a>()</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;{</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;   fgets(buffer, 980, stdin);</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;   p = buffer;</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;   <span class="keywordflow">while</span> (isspace(*p)) p++;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;}</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">// +-------------------------------------------------------------------+</span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="code" href="class_file_reader.html#a0a245d38240776dc53ffd1cc41e344c9">   54</a></span>&#160;<a class="code" href="class_file_reader.html#a0a245d38240776dc53ffd1cc41e344c9">FileReader::FileReader</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* fname)</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;   : filename(fname), done(0)</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;{ }</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<a class="code" href="class_text.html">Text</a></div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="code" href="class_file_reader.html#a8c9c45c3066ab92f6cf3746e21675b6a">   59</a></span>&#160;<a class="code" href="class_file_reader.html#a8c9c45c3066ab92f6cf3746e21675b6a">FileReader::more</a>()</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;{</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;   <span class="keywordflow">if</span> (done) <span class="keywordflow">return</span> <a class="code" href="class_text.html">Text</a>();</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;   std::fstream fin(filename, std::fstream::in);</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;   <span class="keywordflow">if</span> (!fin) {</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;      <a class="code" href="_list_8inl.html#a76779b0ba1af4da2cfb8cf309b39372b">Print</a>(<span class="stringliteral">&quot;ERROR(Parse): Could not open file &#39;%s&#39;\n&quot;</span>, filename.<a class="code" href="class_text.html#aae848844d712fd439b42fe6fb8d89bd6">data</a>());</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="class_text.html">Text</a>();</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;   }</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;   <a class="code" href="class_text.html">Text</a> result;</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;   <span class="keywordtype">char</span> buf[1000], newline;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;   </div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;   <span class="keywordflow">while</span> (fin.get(buf, 1000)) {</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;      result.<a class="code" href="class_text.html#a7af1fe6dc02345050b0c640cb7295265">append</a>(buf);</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;      fin.get(newline);</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;      result.<a class="code" href="class_text.html#a7af1fe6dc02345050b0c640cb7295265">append</a>(newline);</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;   }</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;   done = 1;</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;   <span class="keywordflow">return</span> result;   </div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;}</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment">// +-------------------------------------------------------------------+</span></div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="code" href="class_block_reader.html#a74e9149ad8359c1ebb8ff4f87a652cce">   85</a></span>&#160;<a class="code" href="class_block_reader.html#a74e9149ad8359c1ebb8ff4f87a652cce">BlockReader::BlockReader</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* block)</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;   : data((char*) block), done(0), length(0)</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;{ }</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="code" href="class_block_reader.html#a010c517b9e12c5b867be0e97a7c19fde">   89</a></span>&#160;<a class="code" href="class_block_reader.html#a74e9149ad8359c1ebb8ff4f87a652cce">BlockReader::BlockReader</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* block, <span class="keywordtype">int</span> len)</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;   : data((char*) block), done(0), length(len)</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;{ }</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<a class="code" href="class_text.html">Text</a></div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="code" href="class_block_reader.html#ac87e3837f56701169d4477004d0a5f39">   94</a></span>&#160;<a class="code" href="class_block_reader.html#ac87e3837f56701169d4477004d0a5f39">BlockReader::more</a>()</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;{</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;   <span class="keywordflow">if</span> (done) <span class="keywordflow">return</span> <a class="code" href="class_text.html">Text</a>();</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;   <span class="keywordflow">if</span> (length) {</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;      <a class="code" href="class_text.html">Text</a> result(data, length);</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;      done = 1;</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;      <span class="keywordflow">return</span> result;   </div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;   }</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;   <span class="keywordflow">else</span> <span class="keywordflow">if</span> (data) {</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;      <a class="code" href="class_text.html">Text</a> result(data);</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;      done = 1;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;      <span class="keywordflow">return</span> result;   </div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;   }</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;   done = 1;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;   <span class="keywordflow">return</span> <a class="code" href="class_text.html">Text</a>();</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;}</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div>
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